Limiting Reagents: Quick Calc Quiz

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Test quick limits and yields in chemistry.

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Atti Aryati

Indonesia

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Froggy Jumps Limiting Reagents: Quick Calc QuizOnline version Test quick limits and yields in chemistry. by Atti Aryati 1 In 2 H2 + O2 -> 2 H2O, with 3 mol H2 and 2 mol O2, which is limiting? a Hydrogen (H2) b Water (H2O) c Oxygen (O2) 2 Reaction: Fe + S -> FeS. If you have 0.5 mol Fe and 1.0 mol S, limiting reagent? a Sulfur (S) b Iron (Fe) c FeS 3 In 2 Na + Cl2 -> 2 NaCl, you have 4 mol Na and 1.5 mol Cl2. Limiting reagent? a Sodium (Na) b Chlorine gas (Cl2) c Sodium chloride (NaCl) 4 With 3 mol H2 and 2 mol O2 in 2 H2 + O2 -> 2 H2O, theoretical yield is? a 2 mol H2O b 3 mol H2O c 3.5 mol H2O 5 If theoretical yield is 5 g and actual yield is 4 g, percent yield? a 90% b 70% c 80% 6 Which step confirms the limiting reagent after a reaction? a Count product molecules b Compare available moles to stoichiometric requirements. c Use gas volume only 7 In 3 A + 2 B -> AB3, with 6 A and 2 B, which is limiting? a AB3 b A c B 8 How is theoretical yield determined in a reaction? a From gas volume only b From color change of solution c From stoichiometry using the limiting reagent. 9 In 1 C + 1 O2 -> CO2, with 0.5 C and 0.3 O2, limiting reagent? a Oxygen (O2) b CO2 c Carbon (C) 10 True statement about limiting reagents? a The limiting reagent limits product formed. b All reactants are always used up c Only gases can be limiting reagents.

Froggy Jumps

Limiting Reagents: Quick Calc QuizOnline version

Test quick limits and yields in chemistry.

by Atti Aryati

In 2 H2 + O2 -> 2 H2O, with 3 mol H2 and 2 mol O2, which is limiting?

Hydrogen (H2)

Water (H2O)

Oxygen (O2)

Reaction: Fe + S -> FeS. If you have 0.5 mol Fe and 1.0 mol S, limiting reagent?

Sulfur (S)

Iron (Fe)

FeS

In 2 Na + Cl2 -> 2 NaCl, you have 4 mol Na and 1.5 mol Cl2. Limiting reagent?

Sodium (Na)

Chlorine gas (Cl2)

Sodium chloride (NaCl)

With 3 mol H2 and 2 mol O2 in 2 H2 + O2 -> 2 H2O, theoretical yield is?

2 mol H2O

3 mol H2O

3.5 mol H2O

If theoretical yield is 5 g and actual yield is 4 g, percent yield?

90%

70%

80%

Which step confirms the limiting reagent after a reaction?

Count product molecules

Compare available moles to stoichiometric requirements.

Use gas volume only

In 3 A + 2 B -> AB3, with 6 A and 2 B, which is limiting?

AB3

How is theoretical yield determined in a reaction?

From gas volume only

From color change of solution

From stoichiometry using the limiting reagent.

In 1 C + 1 O2 -> CO2, with 0.5 C and 0.3 O2, limiting reagent?

Oxygen (O2)

CO2

Carbon (C)

True statement about limiting reagents?

The limiting reagent limits product formed.

All reactants are always used up

Only gases can be limiting reagents.

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Limiting Reagents: Quick Calc Quiz

Froggy Jumps

About this activity

Created by

Download the paper version to play

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Limiting Reagents: Quick Calc QuizOnline version

by Atti Aryati

In 2 H2 + O2 -> 2 H2O, with 3 mol H2 and 2 mol O2, which is limiting?

Reaction: Fe + S -> FeS. If you have 0.5 mol Fe and 1.0 mol S, limiting reagent?

In 2 Na + Cl2 -> 2 NaCl, you have 4 mol Na and 1.5 mol Cl2. Limiting reagent?

With 3 mol H2 and 2 mol O2 in 2 H2 + O2 -> 2 H2O, theoretical yield is?

If theoretical yield is 5 g and actual yield is 4 g, percent yield?

Which step confirms the limiting reagent after a reaction?

In 3 A + 2 B -> AB3, with 6 A and 2 B, which is limiting?

How is theoretical yield determined in a reaction?

In 1 C + 1 O2 -> CO2, with 0.5 C and 0.3 O2, limiting reagent?

True statement about limiting reagents?

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